Ecclesiastes 1:16-17

16I said to myself, ‘Listen! I have become very wise! I am much wiser than any of the kings who ruled in Jerusalem before me. I know a lot more things than they ever did!’

17So I decided to study how much wisdom and knowledge really help a person. I wanted to learn if it was better than someone who only does foolish things. But this was also useless, like somebody who tries to catch the wind.